Musar על אבות 3:2

It is also written in Psalms 29,11: "May the Lord grant strength to His people, may He bestow peace on His people." The very fact that דין, a system of jurisprudence, governs relations between people ensures that they do not eat each other up alive. The system prevents anarchy. We have this statement as an introduction to the fourth section of the שולחן ערוך of the טור (based on Avot 3,2). The four categories, which are really eight, are the ones that the eight weekly portions starting with פרשת שמות, and commonly known as שובבים ת"ת, particularly reflect.